i have a strange problem with my copter: it flies just great in stabilize mode and it stays on point pretty ok when using poshold. Now the strange thing: whenever i have it in poshold or alt hold and move the copter in any direction it will drop a lot of altitude!
I first realized problem, when trying to do autotune: i does start autotune, but soon drops so much height, that i have to quit and get it back to altitude by going back to stabilize.
The Software i am using is: APM:Copter V3.4.2-rc2 (179a7f57). The first time i realized this Problem was almost a year ago but with Firmware 3.3.2. But i had so much other stuff to do so the copter was just laying around...
The hardware is a Pixfalcon. The copter itself was used before with a Pixhawk and flew extremely well.
If someone could please look into the logfile and direct me to any direction where this Problem could come from? (www.johannes-froelich.de/transfer/16-11-13_15-22-40.bin.zip)
Thank you so much!!!!